公开(公告)号：US09286918B1

公开(公告)日：2016-03-15

申请号：US14798998

申请日：2015-07-14

Applicant: Seagate Technology LLC

Inventor： Jianhua Xue ,  Jiaoming Qiu ,  Kirill Rivkin ,  Huaqing Yin ,  John Wolf ,  Yonghua Chen

IPC: G11B5/17 ,  G11B5/31

CPC classification number: G11B5/17 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/3123 ,  G11B5/313

Abstract: A write head having a main pole having a pole tip proximate an air bearing surface (ABS), the main pole having a leading side and a trailing side. The write head also includes a yoke having a yoke tip recessed from the ABS, and a helical coil wrapped around the main pole and the yoke. The helical coil has a first turn with its front edge at least substantially aligned with the yoke tip.

公开(公告)号：US20150170681A1

公开(公告)日：2015-06-18

申请号：US14632062

申请日：2015-02-26

Applicant: SEAGATE TECHNOLOGY LLC

Inventor： Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  James Gary Wessel ,  Dehua Han ,  Huaqing Yin ,  Jianhua Xue

IPC: G11B5/11 ,  G11B5/60

CPC classification number: G11B5/11 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/6082

Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.

Abstract translation: 写头，写头具有空气轴承表面，写头包括磁写极，其中在空气轴承表面处，写极具有后表面，与后表面相对的前表面，以及第一和 第二面 靠近磁性写入磁极的后表面的尾部屏蔽; 靠近磁写入极的第一和第二表面的第一和第二间隙; 靠近第一和第二间隙的第一和第二侧面屏蔽件，第一和第二侧面屏蔽件中的每一个具有尾部屏蔽表面; 以及第一和第二反铁磁耦合层，其位于第一和第二侧面屏蔽的尾部屏蔽表面与后屏蔽之间。

公开(公告)号：US08970992B2

公开(公告)日：2015-03-03

申请号：US13890387

申请日：2013-05-09

Applicant: Seagate Technology LLC

Inventor： Mourad Benakli ,  Kirill Aleksandrovich Rivkin ,  James Gary Wessel ,  Dehua Han ,  Huaqing Yin ,  Jianhua Xue

IPC: G11B5/127 ,  G11B5/11 ,  G11B5/31

CPC classification number: G11B5/11 ,  G11B5/3116 ,  G11B5/315 ,  G11B5/6082

Abstract: A write head, the write head having an air bearing surface, the write head including a magnetic write pole, wherein at the air bearing surface, the write pole has a trailing surface, a leading surface that is opposite the trailing surface, and first and second surfaces; a trailing shield proximate the trailing surface of the magnetic write pole; first and second gaps proximate the first and second surfaces of the magnetic write pole; first and second side shields proximate the first and second gaps, each of the first and second side shields having a trailing shield surface; and first and second antiferromagnetic-coupling layers positioned between the trailing shield surfaces of the first and second side shields and the trailing shield.

Abstract translation: 写头，写头具有空气轴承表面，写头包括磁写极，其中在空气轴承表面处，写极具有后表面，与后表面相对的前表面，以及第一和 第二面 靠近磁性写入磁极的后表面的尾部屏蔽; 靠近磁写入极的第一和第二表面的第一和第二间隙; 靠近第一和第二间隙的第一和第二侧面屏蔽件，第一和第二侧面屏蔽件中的每一个具有尾部屏蔽表面; 以及第一和第二反铁磁耦合层，其位于第一和第二侧面屏蔽的尾部屏蔽表面与后屏蔽之间。

公开(公告)号：US08861316B2

公开(公告)日：2014-10-14

申请号：US13718946

申请日：2012-12-18

Applicant: Seagate Technology LLC

Inventor： Huaqing Yin ,  Jianhua Xue ,  Venkateswara Rao Inturi ,  Mark Thomas Kief ,  Michael C. Kautzky

IPC: G11B11/00 ,  G11B5/127

CPC classification number: G11B5/1278 ,  G11B5/3116 ,  Y10T428/115

Abstract: A write pole structure disclosed herein includes a write pole, a trailing shield, and a high magnetic moment (HMM) material layer on a surface of the trailing shield facing the write pole.

Abstract translation: 本文公开的写柱结构包括位于后屏蔽件面对写极的表面上的写极，后屏蔽和高磁矩（HMM）材料层。

公开(公告)号：US08830625B2

公开(公告)日：2014-09-09

申请号：US13689337

申请日：2012-11-29

Applicant: Seagate Technology LLC

Inventor： Eric Shane Linville ,  Jianhua Xue ,  Eric Roger Meloche ,  Huaqing Yin ,  Yonghua Chen

IPC: G11B5/11 ,  G11B5/127

CPC classification number: G11B5/11 ,  G11B5/127 ,  G11B5/1278 ,  G11B5/3116 ,  G11B5/315

Abstract: A data writer may be generally configured at least with a write pole that has a pole sidewall and a continuous first taper angle connecting leading and trailing edges. The write pole can be positioned adjacent to a side shield that is configured with first and second shield sidewalls tapered to a shield tip that is the closest point between the write pole and side shield.

Abstract translation: 数据写入器可以至少一般配置有具有极侧壁的写极和连接前缘和后缘的连续的第一锥角。 写入极可以定位成与侧屏蔽相邻，该侧屏蔽配置有逐渐变细到作为写极和侧屏蔽之间最靠近的屏蔽尖端的第一和第二屏蔽侧壁。

公开(公告)号：US08564906B2

公开(公告)日：2013-10-22

申请号：US13630893

申请日：2012-09-28

Applicant: Seagate Technology LLC

Inventor： Kaizhong Gao ,  Jianhua Xue ,  Yuming Zhou ,  Dehua Han ,  Eric S. Linville

IPC: G11B5/33

CPC classification number: G11B5/11 ,  G11B5/1278 ,  G11B5/2457 ,  G11B5/3116 ,  Y10T428/1186

Abstract: The application discloses a magnetic pole assembly having a pole tip arranged in a magnetic flux path and side shields separated from the pole tip by non-magnetic gap regions. The side shields are shaped to provide a differential shielding effect alongside the pole tip. As described, the sides shields are shaped to provide a non-magnetic gap region having a width that increases in the downtrack direction along a length of the pole tip. The increasing non-magnetic gap region alongside the pole tip provides a smaller non-magnetic gap region separating the pole tip from the side shields at the leading edge than the non-magnetic gap region separating the pole tip from the side shields at the trailing edge of the pole tip.

Abstract translation: 该申请公开了一种磁极组件，其具有布置在磁通路径中的极尖和由非磁隙区域与极尖分离的侧屏蔽。 侧面屏蔽件被成形为在极尖附近提供差分屏蔽效应。 如所描述的那样，侧面屏蔽件被成形为提供具有在极尖端的长度方向上沿着倾斜方向增加的宽度的非磁性间隙区域。 与极尖一起增加的非磁隙区域提供了一个较小的非磁性间隙区域，该非磁性间隙区域将磁极尖端与前缘上的侧屏蔽件分开，而非磁性间隙区域将磁极尖端与后端边缘侧屏蔽件分开 的极点。